CN210978705U - High-efficient electromagnetic pulse valve - Google Patents

Abstract

The utility model relates to a high-efficient electromagnetic pulse valve, including last disk seat and lower disk seat, the disk seat border is provided with inlet channel under, the disk seat center is provided with air outlet channel under, be provided with the first diaphragm subassembly that is used for cutting off inlet channel and air outlet channel between last disk seat and the disk seat down, be provided with first air chamber between first diaphragm subassembly and last disk seat, be provided with the air flue of a plurality of intercommunication inlet channel and first air chamber along disk seat the central axis array down on the disk seat down, be provided with the mount pad in the air flue, wear to be equipped with the valve rod that can mount pad axial displacement relatively at the mount pad center, still be provided with the through-hole of both sides about the intercommunication mount pad on the mount pad, be provided with the valve cap that is used for sealing the through-hole upper end in the valve rod upper end, be provided with in the valve cap upper. The utility model discloses need not set up the orifice on the valve diaphragm, and then make the valve be difficult to blockked up at the during operation, improve the circulation efficiency of air current.

Description

High-efficient electromagnetic pulse valve

Technical Field

The utility model relates to a high-efficient electromagnetic pulse valve.

Background

The pulse valve is a diaphragm valve which is controlled by a pilot valve such as an electromagnetic valve or a pneumatic valve and can instantly open and close a high-pressure air source to generate pulses, and the pulse valve is a main component of the bag-type dust collector. The existing pulse valve is communicated with air chambers above and below a diaphragm through a throttling hole formed in the diaphragm, when an electromagnetic coil of the control valve is powered on during work, an armature component is lifted upwards under the action of electromagnetic force, a pressure relief hole is opened, and air is discharged. When the electromagnetic coil of the control valve is not electrified, gas enters the gas chamber above the diaphragm through the throttling hole in the diaphragm between the upper shell and the lower shell, the armature component blocks the pressure relief hole under the action of the spring, so that the gas above the diaphragm cannot be discharged until the pressure above the diaphragm is consistent with that below the diaphragm, and the diaphragm moves downwards immediately under the action of different upper and lower pressure areas of the main valve spring and the diaphragm, so that the gas outlet channel is closed, high-pressure gas is not sprayed out any more, and primary pulse gas is formed.

The existing pulse valve has the following defects: (1) because the throttling hole is small (about phi 1.5), the flow of gas flowing into the upper part of the diaphragm from the lower part of the diaphragm is reduced due to the blockage of pollutants such as dust, and the like, so that the gas supply time from the lower part of the diaphragm to the upper part of the diaphragm is prolonged, the diaphragm blocks a gas outlet channel, the pressure relief is not realized, and the pulse waveform is further slowed, so that the dust removal effect of the dust remover is reduced; (2) meanwhile, as the air supply time from the lower part of the diaphragm to the upper part of the diaphragm is prolonged, the closing of the diaphragm is delayed, a large amount of high-pressure gas escapes from the pulse gas outlet, and the energy is wasted; (3) the throttling hole is arranged on the pressure surface of the diaphragm and is flushed by high-pressure gas for a long time, and particularly in the diaphragm with a plurality of throttling holes, the diaphragm is easy to crack and lose efficacy.

Disclosure of Invention

In view of this, the utility model aims at providing a high-efficient electromagnetic pulse valve, rational in infrastructure, easy and simple to handle need not set up the orifice on the valve diaphragm, and then makes the valve be difficult to blockked up at the during operation, improves the circulation efficiency of air current.

The technical scheme of the utility model is that: the utility model provides a high-efficient electromagnetic pulse valve, including last disk seat and lower disk seat, disk seat border is provided with inlet channel under, disk seat center is provided with outlet channel under, be provided with the first diaphragm assembly who is used for cutting off inlet channel and outlet channel between last disk seat and the lower disk seat, be provided with first spring between first diaphragm assembly and last disk seat, still be provided with the control valve that can attract first diaphragm assembly upward movement in last disk seat upper end, be provided with first air chamber between first diaphragm assembly and last disk seat, its characterized in that: the valve seat is provided with a plurality of air passages communicated with an air inlet channel and a first air chamber along a lower valve seat central axis array, a mounting seat is arranged in the air passages, a valve rod capable of moving axially relative to the mounting seat is arranged in the center of the mounting seat in a penetrating mode, through holes communicated with the upper side and the lower side of the mounting seat are further formed in the mounting seat, a valve cap used for sealing the upper end of each through hole is arranged at the upper end of each valve rod, and a compression spring used for enabling the valve cap to be propped against the upper end of the mounting.

Furthermore, the lower end of the compression spring is fixed on the valve cap, and the upper end of the compression spring is fixed on the upper valve seat.

Furthermore, a pressure relief air inlet hole and a pressure relief air outlet hole are formed in the upper valve seat.

Further, the control valve comprises a valve body, a second diaphragm assembly used for separating a pressure relief air inlet hole and a pressure relief air outlet hole is arranged at the lower end of the valve body, a throttling hole is formed in the second diaphragm assembly, a second spring is arranged at the upper end of the second diaphragm assembly, a second air chamber is arranged between the second diaphragm assembly and the valve body, a pressure relief hole communicated with the second air chamber is further formed in the valve body, an armature assembly used for separating the pressure relief hole and the second air chamber is further arranged at the upper end of the valve body, and an armature spring and an electromagnetic coil are further arranged at the upper end of the armature assembly.

Compared with the prior art, the beneficial effects of the utility model are that: (1) the utility model has reasonable structure and simple operation, and does not need to arrange a throttling hole on the valve diaphragm, thereby ensuring that the valve is not easy to be blocked during working and improving the circulation efficiency of air flow; (2) the utility model has the advantages that the throttle hole structure is replaced by the air passage, the mounting seat, the through hole, the valve rod, the valve cap and the compression spring, so that the pressed surface of the diaphragm is not kept complete, the diaphragm is not easy to tear, and the reliability and the service life of the valve are enhanced; (3) the utility model discloses a set up air flue, mount pad, through-hole, valve rod, valve cap and compression spring and replace the orifice structure, be difficult to block up, it is fast to keep valve reaction rate, and the pulse action is fast, hysteresis can not appear.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

FIG. 1 is a schematic structural diagram of a conventional pulse valve;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

fig. 3 is a schematic working diagram of the power-on state of the control valve according to the embodiment of the present invention;

fig. 4 is a partially enlarged schematic view of the embodiment of the present invention in fig. 3;

fig. 5 is a schematic working diagram of the control valve according to the embodiment of the present invention in the power-off state;

fig. 6 is a partially enlarged schematic view of the embodiment of the present invention shown in fig. 5;

in the figure: 10-a pulse valve; 11-a pulse valve diaphragm assembly; 12-diaphragm orifice; 13-high pressure gas inlet; 14-high pressure air outlet; 15-a pressure relief channel; 16-a pulse control valve; 100-an upper valve seat; 110-a pressure relief inlet port; 120-pressure relief vent hole; 200-lower valve seat; 210-an intake passage; 220-air outlet channel; 230-the airway; 231-a mount; 232-valve stem; 233-through holes; 234-valve cap; 235-a compression spring; 300-a first diaphragm assembly; 310-a first spring; 400-a control valve; 410-a valve body; 420-a second diaphragm assembly; 430-orifice; 440-a second spring; 450-a second air chamber; 460-pressure relief vent; 470-an armature assembly; 480-an armature spring; 490-an electromagnetic coil; 500-first air chamber.

Detailed Description

As shown in fig. 2 to 6, a high-efficiency electromagnetic pulse valve includes an upper valve seat 100 and a lower valve seat 200, an air inlet channel 210 is disposed at the edge of the lower valve seat 200, an air outlet channel 220 is disposed at the center of the lower valve seat 200, a first diaphragm assembly 300 for separating the air inlet channel 210 and the air outlet channel 220 is disposed between the upper valve seat 100 and the lower valve seat 200, a first spring 310 is disposed between the first diaphragm assembly 300 and the upper valve seat 100, a control valve 400 capable of attracting the first diaphragm assembly 300 to move upward is further disposed at the upper end of the upper valve seat 100, and a first air chamber 500 is disposed between the first diaphragm assembly 300 and the upper valve seat 100, which is characterized in that: a plurality of air passages 230 communicating the air inlet passage 210 with the first air chamber 500 are arranged on the lower valve seat 200 along the central axis array of the lower valve seat 200, an installation seat 231 is arranged in the air passages 230, a valve rod 232 capable of axially moving relative to the installation seat 231 penetrates through the center of the installation seat 231, through holes 233 communicating the upper side and the lower side of the installation seat 231 are further arranged on the installation seat 231, a bonnet 234 for sealing the upper end of the through hole 233 is arranged at the upper end of the valve rod 232, and a compression spring 235 for pushing the bonnet 234 against the upper end of the installation seat 231 is arranged at the upper end of the bonnet 234. High-pressure gas enters the gas inlet channel 210, the upper valve seat 100 and the lower valve seat 200 are locked through bolts and nuts, the first diaphragm assembly 300 is positioned between the upper valve seat 100 and the lower valve seat 200, and the variable edge of the first diaphragm assembly 300 is tightly pressed and fixed between the upper valve seat 100 and the lower valve seat 200; the first spring 310 is in a compressed state, pushing the first diaphragm assembly 300 down; the control valve 400 is used for controlling the pressure relief of the high-pressure gas in the first air chamber 500, when the control valve 400 is powered on, the high-pressure gas in the first air chamber 500 can be discharged, and when the control valve 400 is powered off, the high-pressure gas in the first air chamber 500 can be held in the first air chamber 500; the air channel 230 is arranged in a position which is not extruded by high-pressure air above and below the membrane, so that the membrane is prevented from being further damaged when the high-pressure air flow passes through the air channel 230; the first spring 310 is compressed, and presses the valve cap 234 against the mounting seat 231, so that the valve cap 234 closes the through hole 233, and high-pressure gas is required to push the valve cap 234 open, so that the through hole 233 and the gas passage 230 communicate the gas inlet passage 210 with the first gas chamber 500.

Further, a lower end of the compression spring 235 is fixed to the valve cap 234, and an upper end of the compression spring 235 is fixed to the upper valve seat 100.

Further, a pressure relief inlet hole 110 and a pressure relief outlet hole 120 are provided on the upper valve seat 100.

Further, the control valve 400 includes a valve body 410, a second diaphragm assembly 420 for separating the pressure relief inlet hole 110 and the pressure relief outlet hole 120 is disposed at a lower end of the valve body 410, a throttle hole 430 is disposed on the second diaphragm assembly 420, a second spring 440 is disposed at an upper end of the second diaphragm assembly 420, a second air chamber 450 is disposed between the second diaphragm assembly 420 and the valve body 410, a pressure relief hole 460 communicating with the second air chamber 450 is further disposed on the valve body 410, an armature assembly 470 for separating the pressure relief hole 460 and the second air chamber 450 is further disposed at an upper end of the valve body 410, and an armature spring 480 and an electromagnetic coil 490 are further disposed at an upper end of the armature assembly 470.

The specific implementation process comprises the following steps: (1) when the control valve 400 is powered on, the electromagnetic coil 490 is powered on, so that the armature assembly 470 can lift upwards under the action of electromagnetic force, high-pressure gas in the second air chamber 450 flows away from the pressure relief hole 460, the second diaphragm assembly 420 lifts upwards, the pressure relief gas inlet hole 110 is communicated with the pressure relief gas outlet hole 120, gas in the first air chamber 500 flows out from the pressure relief gas outlet hole 120, the first diaphragm assembly 300 lifts upwards, at this time, the gas inlet channel 210 is communicated with the gas outlet channel 220, and high-pressure gas enters from the gas inlet channel 210 and exits from the gas outlet channel 220; (2) when the control valve 400 is powered off, the gas in the control valve 400 is not discharged, the armature spring 480 enables the armature assembly 470 to separate the second air chamber 450 from the pressure relief hole 460, the second spring 440 compresses the second diaphragm assembly 420 to separate the pressure relief inlet hole 110 from the pressure relief outlet hole 120, at this time, because the air passage 230 is communicated with the gas inlet channel 210, when the high-pressure gas pushes the valve rod 232 open, the high-pressure gas enters the first air chamber 500 through the air passage 230 and the through hole 233, because the pressure relief inlet hole 110 is separated from the pressure relief outlet hole 120 at this time, the high-pressure gas can be continuously gathered in the first air chamber 500 until the upper and lower pressures of the first diaphragm assembly 300 reach balance, the first diaphragm assembly 300 can instantly move downwards under the action of the difference of the upper and lower bearing areas of the first spring 310 and the first diaphragm assembly 300, so as to separate the gas inlet channel 210 from the gas outlet channel 220, the high pressure gas is not sprayed out from the gas outlet channel 220 any more to form a pulse gas, and then the step (1) is repeated to electrify the control valve 400, so as to discharge the high pressure gas in the first air chamber 500, so that the gas inlet channel 210 is communicated with the gas outlet channel 220, and the high pressure gas flows out from the gas outlet channel 220 again.

Above-mentioned operation flow and software and hardware configuration only do as the preferred embodiment of the utility model discloses a not therefore restrict the patent scope of the utility model, all utilize the utility model discloses the equivalent transform of doing of description and attached drawing content, or directly or indirectly use in relevant technical field, all the same reason is included in the patent protection scope of the utility model.

Claims (4)

1. The utility model provides a high-efficient electromagnetic pulse valve, including last disk seat and lower disk seat, disk seat border is provided with inlet channel under, disk seat center is provided with outlet channel under, be provided with the first diaphragm assembly who is used for cutting off inlet channel and outlet channel between last disk seat and the lower disk seat, be provided with first spring between first diaphragm assembly and last disk seat, still be provided with the control valve that can attract first diaphragm assembly upward movement in last disk seat upper end, be provided with first air chamber between first diaphragm assembly and last disk seat, its characterized in that: the valve seat is provided with a plurality of air passages communicated with an air inlet channel and a first air chamber along a lower valve seat central axis array, a mounting seat is arranged in the air passages, a valve rod capable of moving axially relative to the mounting seat is arranged in the center of the mounting seat in a penetrating mode, through holes communicated with the upper side and the lower side of the mounting seat are further formed in the mounting seat, a valve cap used for sealing the upper end of each through hole is arranged at the upper end of each valve rod, and a compression spring used for enabling the valve cap to be propped against the upper end of the mounting.

2. A high efficiency electromagnetic pulse valve as defined in claim 1, wherein: the lower end of the compression spring is fixed on the valve cap, and the upper end of the compression spring is fixed on the upper valve seat.

3. A high efficiency electromagnetic pulse valve as defined in claim 2, wherein: the upper valve seat is provided with a pressure relief air inlet hole and a pressure relief air outlet hole.

4. A high efficiency electromagnetic pulse valve as defined in claim 3, wherein: the control valve comprises a valve body, a second diaphragm assembly used for separating a pressure relief air inlet and a pressure relief air outlet is arranged at the lower end of the valve body, a throttling hole is formed in the second diaphragm assembly, a second spring is arranged at the upper end of the second diaphragm assembly, a second air chamber is arranged between the second diaphragm assembly and the valve body, a pressure relief hole communicated with the second air chamber is further formed in the valve body, an armature assembly for separating the pressure relief hole from the second air chamber is further arranged at the upper end of the valve body, and an armature spring and an electromagnetic coil are further arranged at the upper end of the armature assembly.

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